Der Himmel unter Berlin

The sky under Berlin is a world of its own, where the underground has been spinning its webs for a hundred years, where countless tunnels and bunkers preserve secret stories, where countless people stream through day in, day out. Not to forget the musicians who fill this underworld with sounds. One of them has come from Prague: Petr Bém, a young German teacher, fleeing his old life and longing for a new one. When he meets Pancho Dirk in the underground, who is obsessed with music, the two of them form a band and call it U-BAHN, because it's all about blackness, noise and tempo. Then Petr falls in love with Katrin, the daughter of a train driver.